Replace hardcoded 11 with a define

The 11 comes from the legacy API that we need to be binary compatible with.
Make this clear with a define and a comment.

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>

1 files changed, 2 insertions, 2 deletions

diff --git a/src/state.h b/src/state.h
index 256858a..06e86ae 100644
--- a/src/state.h
+++ b/src/state.h
@@ -72,8 +72,8 @@ static inline void set_sval(struct mtdev_slot *slot, int ix, int value)
  */
 struct mtdev_state {
 
-        int has_ext_abs[MT_ABS_SIZE - 11];
-        struct input_absinfo ext_abs[MT_ABS_SIZE - 11];
+        int has_ext_abs[MT_ABS_SIZE - LEGACY_API_NUM_MT_AXES];
+        struct input_absinfo ext_abs[MT_ABS_SIZE - LEGACY_API_NUM_MT_AXES];
 
         struct mtdev_iobuf iobuf;
         struct mtdev_evbuf inbuf;